12043242 has 40 divisors (see below), whose sum is σ = 28579716. Its totient is φ = 3777408.

The previous prime is 12043219. The next prime is 12043267. The reversal of 12043242 is 24234021.

It can be written as a sum of positive squares in 2 ways, for example, as 11634921 + 408321 = 3411^2 + 639^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 568 + ... + 4940.

Almost surely, 2^12043242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12043242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14289858).

12043242 is an abundant number, since it is smaller than the sum of its proper divisors (16536474).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12043242 is a wasteful number, since it uses less digits than its factorization.

12043242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4404 (or 4395 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 12043242 is about 3470.3374475690. The cubic root of 12043242 is about 229.2175173695.

Adding to 12043242 its reverse (24234021), we get a palindrome (36277263).

The spelling of 12043242 in words is "twelve million, forty-three thousand, two hundred forty-two".